Chem-Marin's products help you control two of the biggest pests in the aquarium; Parasites and Aiptasia. Until now, its been virtually impossible to control parasites in a marine aquarium that contained invertebrates. Parasites such as Odinium and Cryptocaryon required treatments that contain copper, which meant instant death for corals and inverts. Copper can also be harmful to fish if it is improperly dosed, but that problem is in the past thanks to the innovative work of Chem-Marin.